What innovations and socioeconomic developments account for the widespread prosperity of Chinese civilization in the tang and song era and what were the main social effects of those developments?

During the time of those dynasties, China developed and innovated compass for navigation, bank notes, economic revolution and so on.

Explanation:

During the time of song and Tang era, the Chinese civilization developed a lot because this time led to the development of the compass for-navigation. The government also developed bank notes for the use. This was the time of economic revolution in the country.

The system of civil service examination was also given a lot of importance and criminal code was also developed. With the developments and these innovation, the civilization saw a lot of growth and development in the country and the thinking of people went forward and got modern. People improved their standards of living.